Laboratory-Based Cytological and Biochemical Profile of Cerebrospinal Fluid for Children With Acute Bacterial Meningitis in Bangladesh

Abstract

An attempt was made to analyze the cerebrospinal fluid (CSF) for a cytological and biochemical profile to identify etiological agents from children with suspected acute bacterial meningitis. The cerebrospinal fluid (CSF) samples from 371 suspected meningitis cases were examined, and the highest bacterial meningitis was found in 52(14.0%) cases in this study. Among a total of 371 samples of CSF, 272(73.3%) were crystal clear, 52(14.0%) were moderately turbid, 47(12.7%) highly turbid. The total leukocyte cell count of the CSF was proportionate to the turbidity. In the case of crystal clear CSF’s, total leukocyte counts (TLC) were normally ranging from <5 to 45 per mm3 with predominant lymphocytes. Moderately turbid fluid showed 46 to 500 cells per mm3 and highly turbid fluid showed from 501 to more than 10,00 cells/mm3. In the latter cases, differential counts demonstrated polymorphonuclear predominance. In addition, about 100% (52 cases) of positive and 12.5% (40/319) of negative cases had CSF protein concentration >100 mg/dL. CSF protein concentration greater than 100 mg/dl and sugar level below 40 mg/dl were considered as suspected bacterial meningitis in this study. Surprisingly, the C-Reactive Protein (CRP) values were found to be >40 mg/dL in both culturally positive and negative cases. Most of meningitis positive cases showed increased total cell counts as well as protein concentration, and decreased serum sugar concentrations. J. Asiat. Soc. Bangladesh, Sci. 47(2): 137-147, December 2021

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“…12 Level of protein was high and level of glucose was low in patients with turbid CSF as compared to that of clear CSF in the current study and this nding is in parallel with the results of similar other studies. 13,14 This was what was observed in most of the patient samples (clear CSF) of the current study. A signi cant difference was found between CSF protein level and CSF texture (turbid or clear) using the non-parametric test for two independent samples which was indicated by CSF protein being signi cantly high (P < 0,05) among study participants having turbid CSF compared to that of clear CSF.…”